Commit Graph

29449 Commits

Author SHA1 Message Date
Alex Bligh 203cea22a3 audio/mixeng_template.h: fix inline declaration
Fix error: ‘inline’ is not at beginning of declaration
[-Werror=old-style-declaration]

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-10-26 13:09:34 +04:00
Stefan Weil 59b0096213 misc: Spelling and grammar fixes in comments
* it's -> its
* grammar fix in ui/vnc-enc-zywrle.h

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Don Koch <dkoch@verizon.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-10-26 13:06:45 +04:00
WengFan 5f32804c79 docs/ccid.txt: fix the typo
Signed-off-by: WengFan <wengfan-fnst@cn.fujitsu.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-10-26 13:04:12 +04:00
Eric Blake 63922c6477 qapi: fix documentation example
The QMP wire format uses "", not '', around strings.

* docs/qapi-code-gen.txt: Fix typo.

Signed-off-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-10-26 13:01:58 +04:00
Fam Zheng eb02dc0b11 .gitignore: ignore qmp-commands.txt
This file is moved out from QMP/ to BUILD dir, change the ignore file
too.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-10-26 13:01:57 +04:00
Stefan Weil 73f395fa88 misc: New spelling fixes in comments
compatiblity -> compatibility
continously -> continuously
existance -> existence
usefull -> useful
shoudl -> should

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-10-26 13:01:57 +04:00
Michael Tokarev 2b170effc7 configure: create fsdev/ directory
In some cases when building with parallelism (make -jN),
build fails because the directory where output files are
supposed to be does not exist.  In particular, when make
decides to build virtfs-proxy-helper.1 before other files
in fsdev/, build will fail with the following error:

perl -Ww -- BUILDDIR/scripts/texi2pod.pl BUILDDIR/fsdev/virtfs-proxy-helper.texi fsdev/virtfs-proxy-helper.pod && pod2man --utf8 --section=1 --center=" " --release=" " fsdev/virtfs-proxy-helper.pod > fsdev/virtfs-proxy-helper.1
opening "fsdev/virtfs-proxy-helper.pod": No such file or directory

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
2013-10-26 13:01:37 +04:00
Andreas Färber 3bbf37f269 spapr: Use DeviceClass::fw_name for device tree CPU node
Instead of relying on cpu_model, obtain the device tree node label
per CPU. Use DeviceClass::fw_name as source.

Whenever DeviceClass::fw_name is unknown, default to "PowerPC,UNKNOWN".

As a consequence, spapr_fixup_cpu_dt() can operate on each CPU's fw_name,
obsoleting sPAPREnvironment::cpu_model, and spapr_create_fdt_skel() can
drop its cpu_model argument.

Signed-off-by: Prerna Saxena <prerna@linux.vnet.ibm.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:48 +02:00
Andreas Färber 793826cd46 target-ppc: Fill in OpenFirmware names for some PowerPCCPU families
Set the expected values for POWER7, POWER7+, POWER8 and POWER5+.
Note that POWER5+ and POWER7+ are intentionally lacking the '+', so the
lack of a POWER7P family constitutes no problem.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:48 +02:00
Aneesh Kumar K.V e62fbc54d4 target-ppc: dump-guest-memory support
This patch add support for dumping guest memory using dump-guest-memory
monitor command.

Before patch:

(qemu) dump-guest-memory testcrash
this feature or command is not currently supported
(qemu)

After patch:

(qemu) dump-guest-memory testcrash
(qemu)

crash was able to read the file

crash> bt
PID: 0      TASK: c000000000c0d0d0  CPU: 0   COMMAND: "swapper/0"

 R0:  0000000028000084    R1:  c000000000cafa50    R2:  c000000000cb05b0
 R3:  0000000000000000    R4:  c000000000bc4cb0    R5:  0000000000000000
 R6:  001efe93b8000000    R7:  0000000000000000    R8:  0000000000000000
 R9:  b000000000001032    R10: 0000000000000001    R11: 0001eb2117e00d55
....
...

NOTE: Currently crash tools doesn't look at ELF notes in the dump on ppc64.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:48 +02:00
Aneesh Kumar K.V bb6b684363 dump-guest-memory: Check for the correct return value
We should check for error with s->note_size

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:48 +02:00
Aneesh Kumar K.V d83af16786 target-ppc: Use #define for max slb entries
Instead of opencoding 64 use MAX_SLB_ENTRIES. We don't update the kernel
header here.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:48 +02:00
Aneesh Kumar K.V 2f4d0f5990 target-ppc: Check for error on address translation in memsave command
When we translate the virtual address to physical check for error.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:48 +02:00
Aneesh Kumar K.V 4b4d4a21b9 target-ppc: Update slb array with correct index values.
Without this, a value of rb=0 and rs=0 results in replacing the 0th
index. This can be observed when using gdb remote debugging support.

(gdb) x/10i do_fork
   0xc000000000085330 <do_fork>:        Cannot access memory at address 0xc000000000085330
(gdb)

This is because when we do the slb sync via kvm_cpu_synchronize_state,
we overwrite the slb entry (0th entry) for 0xc000000000085330

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:48 +02:00
Alexey Kardashevskiy 5cc7a967e9 spapr-pci: enable irqfd for INTx
This enables IRQFD for LSI (level triggered INTx interrupts) by adding
a spapr_route_intx_pin_to_irq() callback to the sPAPR PCI host bus. This
callback is called to know the global interrupt number to link resampling fd
with IRQFD's fd in KVM.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:47 +02:00
Alexey Kardashevskiy 9554233c9b xics-kvm: enable irqfd for MSI
This enables IRQFD support for sPAPR. The feature decreases the latency
of interrupt handling.

To enable IRQFD for MSI, this sets kvm_gsi_direct_mapping to true which
enables direct MSI mapping.

To enable IRQFD for LSI (level triggered INTx interrupts), a PCI host bus
callback is required. The patch for that is coming next.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:47 +02:00
Benjamin Herrenschmidt 5d87e4b74a xics: Implement H_XIRR_X
This implements H_XIRR_X hypercall in addition to H_XIRR as
it is mandatory for PAPR+ and there is no way for the guest to
detect whether it is supported or not so just add it.

As the Partition Adjunct Option is not supported at the moment,
the CPPR parameter of the hypercall is ignored.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:47 +02:00
Benjamin Herrenschmidt 075edbe3ba xics: Implement H_IPOLL
This adds support for the H_IPOLL hypercall which the guest
uses to poll for a pending interrupt. This hypercall is
mandatory for PAPR+ and there is no way for the guest to
detect whether it is supported or not so just add it.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:47 +02:00
David Gibson 11ad93f681 xics-kvm: Support for in-kernel XICS interrupt controller
Recent (host) kernels support emulating the PAPR defined "XICS" interrupt
controller system within KVM.  This patch allows qemu to initialize and
configure the in-kernel XICS, and keep its state in sync with qemu's XICS
state as necessary.

This should give considerable performance improvements.  e.g. on a simple
IPI ping-pong test between hardware threads, using qemu XICS gives us
around 5,000 irqs/second, whereas the in-kernel XICS gives us around
70,000 irqs/s on the same hardware configuration.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
[Mike Qiu <qiudayu@linux.vnet.ibm.com>: fixed mistype which caused ics_set_kvm_state() to fail]
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:47 +02:00
Alexey Kardashevskiy 5eb92ccc3f xics: add cpu_setup callback
This adds a cpu_setup callback to the XICS device class (as XICS-KVM
will do it different), xics_cpu_setup() will call it if it is set.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:47 +02:00
Alexey Kardashevskiy 5a3d7b23ba xics: split to xics and xics-common
The upcoming XICS-KVM support will use bits of emulated XICS code.
So this introduces new level of hierarchy - "xics-common" class. Both
emulated XICS and XICS-KVM will inherit from it and override class
callbacks when required.

The new "xics-common" class implements:
1. replaces static "nr_irqs" and "nr_servers" properties with
the dynamic ones and adds callbacks to be executed when properties
are set.
2. xics_cpu_setup() callback renamed to xics_common_cpu_setup() as
it is a common part for both XICS'es
3. xics_reset() renamed to xics_common_reset() for the same reason.

The emulated XICS changes:
1. the part of xics_realize() which creates ICPs is moved to
the "nr_servers" property callback as realize() is too late to
create/initialize devices and instance_init() is too early to create
devices as the number of child devices comes via the "nr_servers"
property.
2. added ics_initfn() which does a little part of what xics_realize() did.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:47 +02:00
Alexey Kardashevskiy 456df19cf7 xics: add missing const specifiers to TypeInfo
This adds missing const specifiers to ICS and ICP TypeInfo's.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:47 +02:00
Alexey Kardashevskiy b45ff2d942 xics: convert init() to realize()
This fixes XICS according new QOM rules.

This converts ICS's init() callbacks to realize().

This converts legacy qdev_init_nofail() to property_set(realized).

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:47 +02:00
Alexey Kardashevskiy d1b5682d88 xics: add pre_save/post_load dispatchers
The upcoming support of in-kernel XICS will redefine migration callbacks
for both ICS and ICP so classes and callback pointers are added.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:46 +02:00
Alexey Kardashevskiy 9ccff2a4d6 xics: replace fprintf with error_report
This replaces old-style fprintf with new style error_report.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:46 +02:00
Alexey Kardashevskiy 24408a7d2b spapr: move cpu_setup after kvmppc_set_papr
This moves the xics_cpu_setup() call after kvmppc_set_papr()
in order to get VCPUs initialized as this is required by upcoming
XICS-KVM.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:46 +02:00
Alexey Kardashevskiy 8ffe04ed2e xics: move reset and cpu_setup
This simple change makes following patches nicer.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:46 +02:00
David Gibson feaa64c41f target-ppc: Add helper for KVM_PPC_RTAS_DEFINE_TOKEN
Recent PowerKVM allows the kernel to intercept some RTAS calls from the
guest directly.  This is used to implement the more efficient in-kernel
XICS for example.  qemu is still responsible for assigning the RTAS token
numbers however, and needs to tell the kernel which RTAS function name is
assigned to a given token value.  This patch adds a convenience wrapper for
the KVM_PPC_RTAS_DEFINE_TOKEN ioctl() which is used for this purpose.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:46 +02:00
Alexey Kardashevskiy 4fe822e075 spapr-rtas: fix h_rtas parameters reading
On the real hardware, RTAS is called in real mode and therefore
top 4 bits of the address passed in the call are ignored.
So does the patch.

This converts h_rtas() to use existing rtas_ld() handlers.

This fixed rtas_ld()/rtas_st() to ignore top 4 bits.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:46 +02:00
Alexey Kardashevskiy dcb861cb88 spapr: Add ibm, purr property on power7 and newer
PAPR+ says that no "ibm,purr" tells the guest that H_PURR is not
supported. However some guests still try calling H_PURR on POWER7 unless
the property is present and equal to 0. This adds the property for CPUs
supporting the PURR special register.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:46 +02:00
Alexey Kardashevskiy 3bf6eedd4b spapr: increase temporary fdt buffer size
At the moment the size of the buffer is set to 64K which is
enough for approximately 150 VCPUs which is not the limit.

This increases the buffer up to 256K which allows having
a tree for approximately 600 VCPUs which is way beyond the real
number we need.

As only the real size of the tree is copied to the guest, there
will be no impact on existing configurations.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:46 +02:00
Alexander Graf 9633fcc6a0 PPC: Fix L2CR write accesses
Commit 2345f1c01 was supposed to render L2CR writes into noops. Instead,
it made them illegal instruction traps which apparently didn't confuse
XNU, but can easily confuse other OSs.

Fix it up by actually doing nothing when we write to L2CR.

Reported-by: Julio Guerra <guerr@julio.in>
Signed-off-by: Alexander Graf <agraf@suse.de>
Tested-by: Julio Guerra <guerr@julio.in>
2013-10-25 23:25:45 +02:00
Tom Musta bbfb6f132a target-ppc: Little Endian Correction to Load/Store Vector Element
The Load Vector Element (lve*x) and Store Vector Element (stve*x)
instructions not only byte-swap in Little Endian mode, they also
invert the element that is accessed. For example, the RTL for
lvehx contains this:

     eb <-- EA[60:63]
     if Big-Endian byte ordering then
         VRT[8*eb:8*eb+15] <-- MEM(EA,2)
     else
         VRT[112-(8*eb):127-(8*eb)] <-- MEM(EA,2)

This patch adds the element inversion, as described in the last line
of the RTL.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Reviewed-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:45 +02:00
Tom Musta 04f1f7842e ppc: Add CFAR, DAR and DSISR to the dictionary of printable registers
The CFAR, DAR and DSISR registers are currently missing from the
dictionary of registers that may be printed in the QEMU console.
These are interesting registers when debugging.  With this patch,
the following commands work properly:

     (qemu) print $cfar
     (qemu) print $dar
     (qemu) print $dsisr

Signed-off-by: Tom Musta <tommusta@gmail.com>
Reviewed-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:45 +02:00
Benjamin Herrenschmidt 16457e7f4a pseries: Fix loading of little endian kernels
Try loading the kernel as little endian if it fails big endian.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:45 +02:00
Alexey Kardashevskiy 09b04845a7 pseries: Update SLOF firmware image
This has reworked USB OHCI and adds support of USB EHCI,
VIRTIO-SCSI and various fixes (IBM VSCSI, VGA and more).

The full list of fixes is:
*  usb-ohci: Convert td-phys every time to td-virt
*  usb-storage: Fix cbwflags field
*  Add -fno-strict-aliasing in global CFLAGS
*  usb: fix various issues found with js2x
*  Move hex64-{decode,encode}-unit to node.fs
*  usb: Use separate in-memory endian swap
*  usb-ohci: collect TDs from done list
*  js2x: more fixes
*  js2x: Fix build of takeover image
*  js2x: use new usb stack
*  usb-ohci: Use proper memory barriers always
*  usb: Fix a couple of warnings
*  Fix $cat-instance-unit
*  Cache phandle of /chosen
*  Use root.fs on qemu as well
*  usb-ehci: Add ehci handshake
*  usb: add mb for write accessors
*  usb-ohci: add missing memory barriers
*  usb-ohci: suspend the controller in exit code path
*  usb-ohci: Add a reset when closing the OHCI
*  usb: Use proper accessors for MMIO and separate in-memory endian swap
*  Use a global definition of sync() and mb()
*  net-snk: Remove exception handling
*  usb: unmap buffers
*  slof: call quiesce on closing of stdin
*  usb-kbd: accept "s" to drop to OF prompt
*  USB storage driver
*  usb-ohci: add Bulk transfer support
*  usb-ehci: Add bulk support
*  usb-core: add usb bulk support
*  USB generic hub device driver
*  usb-ehci: setup new device
*  usb-ehci: Check ehci ports
*  usb-ehci: initialize controller
*  USB keyboard driver
*  usb-core: setup new device
*  usb-core: create dev pool allocation
*  usb-ohci: implement ohci send control
*  usb-core: usb send control
*  usb-core: implement usb_{get,put}_pipe routines
*  usb-ohci: allocate pipe pool
*  usb-ohci: reset, init and check-ports
*  Add standard header stdbool.h
*  usb-slof: forth support routines for C
*  usb-ehci: Add USB EHCI skeleton
*  usb-core: Add register accessor functions
*  Use __builtin_bswap routines for endianness swapping
*  usb-core: hcd registration and query routines
*  usb-core: adding generic dev-hci.fs
*  usb-core: registration and makefiles
*  Add new USB code
*  Remove old usb code
*  vga: fix hcall-invert-screen and hcall-blink-screen
*  Enumerate disk/cdrom aliases for multiple disks or cdroms
*  scsi: unify scsi probing code
*  vscsi: generalizing probe code
*  virtio-scsi: iterate through targets
*  scsi: unify and use make-disk-alias
*  nvram: remove unnecessary prints
*  Add hack to client interface finddevice of "/memory"
*  scsi: Fix cdrom boot crash when no medium present
*  Look for /memory@0, not just /memory
*  Fix instance>qname crashing when displaying instance arguments
*  Fix js2x build
*  scsi-disk: Bound check read-blocks
*  Fix off by one error in scsi-disk get-capacity
*  scsi: fix report-luns handling
*  SLOF: virtio-scsi block driver code
*  scsi: Move bits of vio-vscsi.fs to a common helpers file
*  scsi: Move scsi-disk.fs to a generic place
*  SLOF: virtio-scsi helper routines
*  SLOF: virtio-scsi - add pci device file
*  iso9660: Don't constantly reallocate the read buffer
*  vscsi: Sanitize interface between scsi-disk.fs and vio-vscsi.fs
*  vio-vscsi: Rework vio-vscsi support
*  virtio: Add a virtio-set-qaddr helper
*  disk-label: Allocate 4096 bytes for 4k block devices
*  disk-label: Increase the max size of the PReP boot partition
*  Make load-base a real environment variable
*  vio-vscsi: Switch to using a wildcard "disk" node and make scsi-disk generic
*  Fix disk-label package to use proper instance path
*  Increase size of catpad
*  Fix instance>path to contain unit address for wildcard nodes
*  Fix handling of wildcard nodes in open-dev
*  vio-vscsi: Get CRQ on open and release on close

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-10-25 23:25:45 +02:00
Max Reitz ab6f2bbb28 qemu-iotests: Test for loading VM state from qcow2
Add a test for saving a VM state from a qcow2 image and loading it back
(with having restarted qemu in between); this should work without any
problems.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-10-25 11:08:20 +02:00
Edgar E. Iglesias ec426ff808 hw/microblaze: Add support for loading initrd images
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2013-10-24 22:56:48 +02:00
Edgar E. Iglesias d0b022a0e9 hw/microblaze: Indentation cleanups
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2013-10-24 22:32:56 +02:00
Edgar E. Iglesias 11a7621763 microblaze: At swx, check that the reserved word is unmodified
This improves the reservation check for system emulation, making
it possible to catch stores that modify reserved word.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2013-10-24 22:32:56 +02:00
Edgar E. Iglesias 4a53627045 microblaze: Turn res_addr into a tcg global
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2013-10-24 22:32:56 +02:00
Edgar E. Iglesias 536446e914 microblaze: Move the saving of the reservation addr into gen_load
No functional change.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2013-10-24 22:32:56 +02:00
Edgar E. Iglesias 09b9f113ad microblaze: Improve src
Microblaze carry is mirrored in MSR[31], pick it directly from
there. Also, no need to mask cpu_R[dc->ra] when calling
write_carry.

15% improvement in linux-user src loops.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2013-10-24 22:32:56 +02:00
Edgar E. Iglesias bb3cb951ef microblaze: Improve srl
write_carry only looks at bit zero, no need to mask out the others.

Meassured a 12% speed improvement in linux-user srl loops.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2013-10-24 22:32:56 +02:00
Edgar E. Iglesias a235900e22 microblaze: Simplify andn by using tcg_gen_andc
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2013-10-24 22:32:56 +02:00
Edgar E. Iglesias 65ab5eb4ed microblaze: Make write_carryi input a boolean
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2013-10-24 22:32:55 +02:00
Edgar E. Iglesias 04ec7df708 microblaze: Clarify expected input of write_carry
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2013-10-24 22:32:55 +02:00
Peter Lieven fb8fe35f63 block/vpc: check that the image has not been truncated
this adds a check that a dynamic VHD file has not been
accidently truncated (e.g. during transfer or upload).

Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-10-24 17:34:48 +02:00
Peter Lieven fefddf951b qemu-img: add special exit code if bdrv_check is not supported
currently it is not possible to distinguish by exitcode if there
has been an error or if bdrv_check is not supported by the image
format. Change the exitcode from 1 to 63 for the latter case.

Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-10-24 12:03:18 +02:00
Max Reitz 6e13610aa4 qcow2: Unset zero_beyond_eof in save_vmstate
Saving the VM state is done using bdrv_pwrite. This function may perform
a read-modify-write, which in this case results in data being read from
beyond the end of the virtual disk. Since we are actually trying to
access an area which is not a part of the virtual disk, zero_beyond_eof
has to be set to false before performing the partial write, otherwise
the VM state may become corrupted.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-10-24 11:50:51 +02:00